Some professors like to test by sampling—that is, by asking you about a representative part of the issue, then assuming that you could do as well about the rest.

有的教授喜欢用抽查的方法来考试，就是从文章中问你一个具有代表性的问题，然后推测在剩下的题目中你大概能做得怎么样。

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The premise behind ADC is to automatically create a representative compression dictionary based on sampling a small subset of table data.

ADC的前提是根据抽样的一小部分表数据自动创建一个代表性的压缩字典。

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And statistical controls are unlikely to compensate for a poor sampling strategy that does not yield a sample representative of the population to which we want to generalize.

一个差劲的采样策略并不能产生一个我们需要的代表总体的样本，而统计管理不太可能弥补这一点。

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And my staff selects out about 10 of them for me to read each night, sort of a representative sampling.

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The suppliers of bond ETFs get around the liquidity problem by using representative sampling, which simply means tracking only a sufficient number of bonds to represent an index.

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